Feeding dihydroquercetin in wheat-based diets to laying hens: impact on egg production and quality of fresh and stored eggs

Whiting, I.M., Pirgozliev, V., Kljak, K., Orczewska-Dudek, S., Mansbridge, S.C., Rose, S.P. and Atanasov, A.G. (2022) Feeding dihydroquercetin in wheat-based diets to laying hens: impact on egg production and quality of fresh and stored eggs. British Poultry Science.

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Abstract

1. This study assessed the impact of dietary dihydroquercetin (DHQ) in wheat-based diets on egg production, composition and quality when fed to laying hens. A total of 80 Hy-Line Brown hens were allocated to 20 enriched layer cages, over two tiers, in groups of four birds. 2. Two wheat-based diets were used in the study. A basal diet, meeting the nutrient requirement of the hens, containing 11.56 MJ/kg AME and 172 g/kg crude protein, was mixed and split in two parts. One part was fed as prepared to the control group of birds. The second diet was made by adding 1.5 g DHQ per kg basal diet and fed to the treatment group of birds. This level was relatively high and extended the data on levels normally fed. The diets were fed in a meal form and did not contain any coccidiostat, antimicrobial growth promoters or other similar additives. Each diet was fed to hens in 10 replicate cages for four weeks, from 22 to 26 weeks of age, following randomisation. 3. Subsequently, eggs were investigated to determine the impact of dietary DHQ on the quality variables of fresh and 28-day stored eggs. 4. Overall, feeding 1.5 g/kg dietary DHQ for four weeks did not affect (P>0.05) egg production or the quality of fresh and stored eggs. Any observed egg quality changes (P<0.05) confirmed the expected effects of egg storage.

Item Type: Article
Keywords: dihydroquercetin, taxifolin, egg quality, antioxidants, laying hens
Divisions: Agriculture and Environment (from 1.08.20)
Animal Production, Welfare and Veterinary Sciences (to 31.07.20)
Depositing User: Mrs Rachael Harper
Date Deposited: 19 Aug 2022 15:22
Last Modified: 19 Aug 2022 15:22
URI: https://hau.repository.guildhe.ac.uk/id/eprint/17875

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